Security stop for doors



FIG. 1 is a top plan view of the security stop for doors showing my new design;

FIG. 2 is a side elevational view taken from the top of FIG. 1;

FIG. 3 is a side elevational view taken from the left of FIG. 2; and

FIG. 4 is a side elevational view taken from the right of FIG. 2 with the plunger retracted. 

The ornamental design for a security stop for doors, substantially as shown and described. 